An integrated semiconductor image-rejection mixer having high linearity and high gain. In addition to the components of a classic image-rejection architecture, the present mixer has a high-frequency current-diverting stage that permits the operation of the output stage with high conversion gain and sufficient...http://www.google.de/patents/US7424281?utm_source=gb-gplus-sharePatent US7424281 - Image-rejection mixers having high linearity and high gain and RF circuits using the same
